Holdback for vehicles



(No Model.)

S. MCDONALD.

HOLDBAOK FOR VEHICLES.

No. 451,160. Patented Apr. 28, 1891.

Fig. 5

Hdihyzsszs I v IIJQZljII ma ma wamwmw UNITED STATES PATENT OFFICE,

SAMUEL MCDONALD, OF DUNKIRK, INDIANA.

HOLDBACK FOR VEHICLES.

SPECIFICATION forming part of Letters Patent No. 451,160, dated April28, 1891. Application filed November 11, 1890. $erlal No. 371,055; (Nomodel.)

holdbacks.

The object of the present invention is to simplify and improve theconstruction of holdbacks and enable the same to be readily used oneither the top or bottom of a shaft and render'them capable of readilyreleasing the ring of a holdbaek-strap.

The invention consists in the construction and novel combination andarrangement of parts hereinafter fully described, illustrated in theaccompanying drawings, and pointed out in the claim hereto appended.

In the drawings, Figurel is aside elevation of a holdback constructed inaccordance with this invention, and shown applied to a shaft. Fig. 2 isa perspective view of the holdback, the ring being open. Fig. 3 is alongitudinal sectional view, the ring being closed.

Referring to the accompanying drawings, 1 designates a holdback adaptedto be readily employed either above or below a shaft 2, and constructedof suitable metal, and composed of a base-plate 3, provided with a rigidstationary section 4 of a ring, which is composed of the said stationaryintegral section 4 and a pivoted movable section 5, adapted to be swungon its pivot 6 to open and close the ring. The base-plate is providedwith a longitudinal recess 7, formed by flanges 8, which form acontinuation of the integral stationary section, and which are providedat the base of the stationaryintegral section 4 with perforated ears 9,through which passes the pivot 6, which secures the movable section ofthe snap-rin g to the base-plate. The movable section 5 is approximatelysemicircular, and

is pivoted atapoint about midway its length, and is provided below thepivotal point with an integral heel 10, arranged to be engaged by aspring 11, secured in the recess and adapted to hold the movable sectionof the ring in its open and closed position. The'arm ll of the movablesection engages the end of the stationary section and closes the mouthof the opening, and confines a ring of a holdback-strap, and the otherarm 12 of the movable section is arranged, when the ring is closed, in agroove 13, formed in the inner face of the stationary section 4:, andwhen the ring is opened the arm 12 carries the holdback-rlng out ofengagement with the stationary section. The spring 11 has one endsecured in the recess 7, and its other end is free and engages the heel10 0f the movable section of the ring.

It will be readily seen that the holdback is simple and inexpensive inconstruction, is adapted to be readily employed either on the upper orlower face of a shaft, and is capable of carrying a holdback-ring out ofengagement with it when open.

That I claim is A holdback comprising the base-plate provided with theintegral curved section 4, the movable semicircular section 5, pivotedintermediate its ends and having its free end arranged to abut againstthe free end of the stationary section and forming, when closed, acontinuation of the same to provide an unbroken loop or ring, and thespring engaging the movable section, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in presence of two witnesses.

' SAML. MCDONALD.

WVitnesses:

ELMORE YOKE, JAMES A. SUTTON.

